CN207034127U - A kind of differential mechanism axle shaft gear - Google Patents
A kind of differential mechanism axle shaft gear Download PDFInfo
- Publication number
- CN207034127U CN207034127U CN201721003046.4U CN201721003046U CN207034127U CN 207034127 U CN207034127 U CN 207034127U CN 201721003046 U CN201721003046 U CN 201721003046U CN 207034127 U CN207034127 U CN 207034127U
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- CN
- China
- Prior art keywords
- wheel body
- oil
- differential mechanism
- external gear
- axle shaft
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Abstract
The utility model provides a kind of differential mechanism axle shaft gear, belongs to field of mechanical technique.It solves the problems such as existing axle shaft gear poor lubrication.The wheel shaft and wheel body that this differential mechanism includes being connected with axle shaft gear, the outer wall of wheel body is evenly equipped with some external gear teeths, wheel shaft and wheel body offer the internal splined hole being coaxially disposed, wheel body radially offers several circumferential equally distributed lubrication grooves towards the end face of wheel shaft side, wheel body has axially projecting convex shoulder, convex shoulder is supported on the inner of external gear teeth and the end face of convex shoulder and exceeds the 4mm of end 2 of external gear teeth, external gear teeth the inner root portion has the fillet for transitting to convex shoulder, the inwall of internal splined hole through convex shoulder is set, wheel body has the connecting portion that external gear teeth outer end root portion is linked to be to a circle, the radial section of lubrication groove is in round table-like, the bore that lubrication groove presses close to the oil inlet of wheel shaft outer wall is more than lubrication groove in the bore of the oil-out of wheel body outer rim.The utility model has the advantages that structural strength height, high lubricating effect.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of gear, more particularly to a kind of differential mechanism axle shaft gear.
Background technology
Axle shaft gear is a kind of bevel gear, is the important component of formed automobile differential mechanism, and its structure is to bore tooth outwardly, between two parties
Built-in spline axis hole, in order to reduce abrasion, pad is provided between differential casing and axle shaft gear.
In use, some axle shaft gears directly contact with pad, easily worn when axle shaft gear rotates with packing friction, pad
Being thinned increases backlash, and abrasion powder makes grease be deteriorated, and causes flank of tooth abrasive wear, gear can be caused to beat tooth when serious, so
Typically oil groove is set up to slow down above mentioned problem in the binding face of axle shaft gear and pad, oil groove is all straight trough or arc groove, although
Certain lubricity is can guarantee that, but because contact pasta is small, oil groove oil reserve is few, and axle shaft gear is in high speed, high-mechanic operating mode work
When making, in fact it could happen that the situation of lack of lubrication, cause pad ablation or serious wear, in addition the root portion stress collection of external gear teeth
In, rigidity is weak, and bearing capacity is weak, and compression strength is low, broken teeth phenomenon easily occurs.
The content of the invention
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, there is provided a kind of structural strength is high,
The differential mechanism axle shaft gear of high lubricating effect.
The purpose of this utility model can be realized by following technical proposal：A kind of differential mechanism axle shaft gear, including even
Integral wheel shaft and wheel body, the outer wall of described wheel body are evenly equipped with some external gear teeths, tooth are formed between two neighboring external gear teeth
Groove, described wheel shaft and wheel body offer the internal splined hole being coaxially disposed, and described wheel body is radially opened towards the end face of wheel shaft side
Provided with several circumferential equally distributed lubrication grooves, it is characterised in that described wheel body has axially projecting convex shoulder, described
Convex shoulder is supported on the inner of external gear teeth and the end face of convex shoulder and exceeds the end 2-4mm of external gear teeth, described external gear teeth the inner tooth root
Portion has the fillet for transitting to convex shoulder, and the inwall of described internal splined hole through convex shoulder is set, and described wheel body has foreign steamer
Tooth outer end root portion is linked to be the connecting portion of a circle, and the radial section of described lubrication groove is in round table-like, and lubrication groove is pressed close to outside wheel shaft
The bore of the oil inlet of wall is more than lubrication groove in the bore of the oil-out of wheel body outer rim.
In a kind of above-mentioned differential mechanism axle shaft gear, it is circumferential equally distributed that several are offered on described wheel body
Oil-through-hole, described oil-through-hole is obliquely installed and the upper end of oil-through-hole is communicated in teeth groove, and the lower end of oil-through-hole is communicated in wheel body tool
There is the end face of lubrication groove.Oil-through-hole, which is easy to lubricating oil to enter wheel body, has the end of lubrication groove, enhances lubricant effect.
In a kind of above-mentioned differential mechanism axle shaft gear, the quantity of described lubrication groove and oil-through-hole is three, and one
Individual lubrication groove is located at the centering of two neighboring oil-through-hole.So reasonable in design, lubricant effect is preferable.
In a kind of above-mentioned differential mechanism axle shaft gear, the outer peripheral face of described wheel shaft, which offers, axially arranged gets rid of oil
Groove.Wheel shaft, which rotates, to get rid of oil groove and get rid of excessive lubricating oil to wheel body have at the end face or pad of lubrication groove, lubricant effect
It is good.
In a kind of above-mentioned differential mechanism axle shaft gear, the outer end edges edge of described external gear teeth is chamfering.Chamfering is set
Put and be easy to external gear teeth engaged transmission, circular runout will not be produced and generation is vibrated, stable transmission, noise is small.
In a kind of above-mentioned differential mechanism axle shaft gear, described wheel body has end face and the wheel shaft periphery wall of lubrication groove
Junction be provided with one circle deep-slotted chip breaker.Deep-slotted chip breaker reduces the stress concentration of junction so that junction is not easy to break, improves
The bearing capacity of this differential mechanism axle shaft gear.
In a kind of above-mentioned differential mechanism axle shaft gear, the both ends aperture of described internal splined hole is respectively provided with enlarging shape
Spigot surface.So it is easy to be oriented to and installs.
Compared with prior art, this differential mechanism is high with the structural strength of axle shaft gear, and easy for installation, anti-pressure ability is good, convex
The setting of shoulder can cause differential mechanism axial dimension to reduce so that it is the small volume of differential mechanism, in light weight, and also lubricity is good, abrasion
It is small, service life length, stress concentration phenomenon can be reduced in addition, engaged transmission stability is good, and noise is small.
Brief description of the drawings
Fig. 1 is the structure sectional view of this differential mechanism axle shaft gear.
Fig. 2 is the structure right view of this differential mechanism axle shaft gear.
In figure, 1, wheel shaft；2nd, wheel body；2a, convex shoulder；2b, connecting portion；2c, oil-through-hole；3rd, external gear teeth；3a, fillet；4th, it is interior
Splined hole；5th, lubrication groove；5a, oil inlet；5b, oil-out；6th, oil groove is got rid of；7th, chamfering；8th, deep-slotted chip breaker；9th, spigot surface.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As depicted in figs. 1 and 2, this differential mechanism axle shaft gear includes the wheel shaft 1 and wheel body 2 that are connected, wheel body 2 it is outer
Wall is evenly equipped with some external gear teeths 3, and teeth groove is formed between two neighboring external gear teeth 3, and wheel shaft 1 and wheel body 2 offer what is be coaxially disposed
Internal splined hole 4, wheel body 2 radially offer several circumferential equally distributed lubrication grooves 5 towards the end face of the side of wheel shaft 1, and wheel body 2 has
There is the end 2- that axially projecting convex shoulder 2a, convex shoulder 2a are supported on the inner of external gear teeth 3 and convex shoulder 2a end face exceeds external gear teeth 3
4mm, convex shoulder 2a end face exceeds the end 3mm of external gear teeth 3 in the present embodiment, 3 inner root portion of external gear teeth have transit to it is convex
Shoulder 2a fillet 3a, internal splined hole 4 through convex shoulder 2a inwall are set, and wheel body 2 has is linked to be one by the outer end root portion of external gear teeth 3
The connecting portion 2b of circle, the radial section of lubrication groove 5 is in round table-like, and the bore that lubrication groove 5 presses close to the oil inlet 5a of the outer wall of wheel shaft 1 is big
In lubrication groove 5 in the oil-out 5b of the outer rim of wheel body 2 bore.
This differential mechanism adds the structural strength of 3 inner root portion of external gear teeth with the setting of convex shoulder 2a in axle shaft gear, outside
The inner anti-pressure ability of the gear teeth 3 is good, and fillet 3a setting causes convex shoulder 2a to will not interfere with the engaged transmission of external gear teeth 3, and convex
Shoulder 2a end face exceeds the end set of external gear teeth 3, ensure that internal splined hole 4 connects the effective length of Formation of Axle Shaft Spline, can be by difference
Fast device axial dimension shortens 6mm, reduces volume, mitigates weight, and the structure that connecting portion 2b adds the outer end root portion of external gear teeth 3 is strong
Degree, the anti-pressure ability of the outer end of external gear teeth 3 is good, therefore external gear teeth 3 is not easy to break, and service life length, lubrication groove 5 conveniently enters in addition
Oil, oil-out 5b is small so that lubricating oil is not easy to flow out, and oil film can be formed between the end face of wheel body 2 and pad, high lubricating effect, is subtracted
Less wear, extend service life.
Further describe in detail, in order to strengthen lubricant effect, several circumferential equally distributed oil-through-holes are offered on wheel body 2
2c, oil-through-hole 2c is obliquely installed and oil-through-hole 2c upper end is communicated in teeth groove, and oil-through-hole 2c lower end, which is communicated in wheel body 2, has profit
The end face of chute 5.Lubrication groove 5 and oil-through-hole 2c quantity are three in the present embodiment, and a lubrication groove 5 is positioned at two neighboring
At oil-through-hole 2c centering.
In order to improve lubricant effect, the outer peripheral face of wheel shaft 1 offer it is axially arranged get rid of oil groove 6, get rid of oil in the present embodiment
Groove 6 is located in one of the lower section of oil-through-hole 2c lower ends, and it is bar shaped straight trough to get rid of oil groove 6；In order to which engaged transmission is stable, external gear teeth 3
Outer end edges along being chamfering 7；In order to improve the bearing capacity of wheel body 2, wheel body 2 has end face and the periphery wall of wheel shaft 1 of lubrication groove 5
Junction be provided with one circle deep-slotted chip breaker 8；To facilitate installation, the both ends aperture of internal splined hole 4 is respectively provided with the guiding in enlarging shape
Face 9, the angle angle of spigot surface 9 and the axis of internal splined hole 4 is 45 ° in the present embodiment.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (7)
1. a kind of differential mechanism axle shaft gear, including the wheel shaft being connected（1）And wheel body（2）, described wheel body（2）Outer wall
It is evenly equipped with some external gear teeths（3）, two neighboring external gear teeth（3）Between form teeth groove, described wheel shaft（1）And wheel body（2）Open up
There is the internal splined hole being coaxially disposed（4）, described wheel body（2）Towards wheel shaft（1）The end face of side radially offers several circumferences
Equally distributed lubrication groove（5）, it is characterised in that described wheel body（2）With axially projecting convex shoulder（2a）, described convex shoulder
（2a）It is supported on external gear teeth（3）The inner and convex shoulder（2a）End face exceed external gear teeth（3）End 2-4mm, described foreign steamer
Tooth（3）Inner root portion, which has, transits to convex shoulder（2a）Fillet（3a）, described internal splined hole（4）Through convex shoulder（2a）It is interior
Wall is set, described wheel body（2）With by external gear teeth（3）Outer end root portion is linked to be the connecting portion of a circle（2b）, described lubrication
Groove（5）Radial section be in round table-like, lubrication groove（5）Press close to wheel shaft（1）The oil inlet of outer wall（5a）Bore be more than lubrication groove
（5）In wheel body（2）The oil-out of outer rim（5b）Bore.
A kind of 2. differential mechanism axle shaft gear according to claim 1, it is characterised in that described wheel body（2）On open up
There are several circumferential equally distributed oil-through-holes（2c）, described oil-through-hole（2c）It is obliquely installed and oil-through-hole（2c）Upper end connect
Pass through teeth groove, oil-through-hole（2c）Lower end be communicated in wheel body（2）With lubrication groove（5）End face.
A kind of 3. differential mechanism axle shaft gear according to claim 2, it is characterised in that described lubrication groove（5）With it is logical
Oilhole（2c）Quantity be three, a lubrication groove（5）Positioned at two neighboring oil-through-hole（2c）Centering at.
A kind of 4. differential mechanism axle shaft gear according to claim 1 or 2 or 3, it is characterised in that described wheel shaft（1）
Outer peripheral face offer and axially arranged get rid of oil groove（6）.
A kind of 5. differential mechanism axle shaft gear according to claim 4, it is characterised in that described external gear teeth（3）It is outer
End edge edge is chamfering（7）.
A kind of 6. differential mechanism axle shaft gear according to claim 5, it is characterised in that described wheel body（2）With profit
Chute（5）End face and wheel shaft（1）The junction of periphery wall is provided with a circle deep-slotted chip breaker（8）.
A kind of 7. differential mechanism axle shaft gear according to claim 6, it is characterised in that described internal splined hole（4）'s
Both ends aperture is respectively provided with the spigot surface in enlarging shape（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721003046.4U CN207034127U (en) | 2017-08-11 | 2017-08-11 | A kind of differential mechanism axle shaft gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721003046.4U CN207034127U (en) | 2017-08-11 | 2017-08-11 | A kind of differential mechanism axle shaft gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207034127U true CN207034127U (en) | 2018-02-23 |
Family
ID=61486828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721003046.4U Expired - Fee Related CN207034127U (en) | 2017-08-11 | 2017-08-11 | A kind of differential mechanism axle shaft gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207034127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11649884B1 (en) * | 2021-12-17 | 2023-05-16 | Rivian Ip Holdings, Llc | Differential lubrication |
-
2017
- 2017-08-11 CN CN201721003046.4U patent/CN207034127U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11649884B1 (en) * | 2021-12-17 | 2023-05-16 | Rivian Ip Holdings, Llc | Differential lubrication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317600 Ganjiang Town Industrial Zone, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Taizhou Zhongjie Gear Co.,Ltd. Address before: 317600 Ganjiang Town Industrial Zone, Yuhuan City, Taizhou City, Zhejiang Province Patentee before: Yuhuan automobile gear plant |
|
| 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: 20180223 |